State and local officials will be monitoring conditions along the Susquehanna River after about 55,000 gallons of gasoline spilled into a tributary of the river overnight Thursday as a result of flooding in the Williamsport area.

All downstream users that pull water from the river were notified of the spill, said Mike Fetrow, director of the York County Emergency Management Agency.

Wrightsville plans to fill its water reservoir and then close its intake valve to the river, Mayor Neil Habecker said. The borough's intake valve is underwater, and it's believed that any remaining gasoline "will float past us," he said.

Officials say about 55,000 gallons of gasoline from a Sunoco pipeline in Gamble Township leaked into a tributary of the Loyalsock Creek in Lycoming County during flash flooding and landslides from heavy rain that fell Thursday night, a news release from the state Department of Environmental Protection states. The pipeline was shut down Friday morning.

DEP and the company are working to remediate the effects of the spill, the news release state.

The agency is not anticipating any impacts to water systems at this time, spokesman John Repetz said. DEP officials say recent rains should help dilute the fuel, which is also likely to be reduced by evaporation.

The earliest York and Lancaster counties would see any effects from the spill would be early next week, Repetz said.

The York Water Company has an intake valve at the river, but it is only a backup that is used in times of drought. The valve is closed, said J.T. Hand, chief operating officer.